Oil-well pumping mechanism.



No. 892,120 PATENTED JUNE 30, 1908. D. R. BLAKESLEE.

OIL WELL PUMPING MEGHANISM. APPLIOATION FILED JUNE 16,1906.

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DANIEL R. BLAKESLEE, OF VANBUREN, INDIANA.

I OIL-WELL PUMPING- MECHANISM.

Specification of Letters Patent.

Patented June 30, 1908.

Application filed. June 1G, 1906. Serial No. 322,096.

To all whom it may concern:

Be it known that l, DANIEL R. BLAKEs- I LEE, a citizen of the United States of America,

residing at Vanburen, in the county of Grant and State of lIndiana, have invented certain new and useful Improvements in Oil-Well Pumping Mechanism, of which the following is a specification.

This invention relates to new and useful improvements in oil well pumping mechanism and pertains more especially to operating devices therefor.

It is the intention of the invention to provide novel means whereby the various pumps of a well farm may be operated from a central station.

It is an object of the invention to provide a novel device wherein pull is given to the pumping rods through the medium of an eccentric or cam, said eccentric or cam acting as the hub of the operating wheel.

Finally an object of this invention is to produce a device of the character noted,

which will possess advantages in points of efficiency, simplicity and durability proving at the same time comparatively inexpensive to produce and maintain.

Vith the foregoing and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

ln describing the invention in detail reference will be had to the accompanying drawings forming part of this specification wherein like characters denote corresponding parts in the several views, in which* Figure 1, is a central vertical sectional view of a pumping apparatus embodying the invention.- Figs. 2, and 3 are perspective views illustrating forms of eccentrics used.'

Fig. 4:, is a detail section showing the manner of securing the working parts, and Fig. 5, is a detail sectional perspective of the star ring.

Positioned at any suitable point within an oil farm but preferably centrally thereof is a foundation of concrete or other material from which projects a tapered spindle or shaft 2, which is adapted to be engaged by the hub 3, of the eccentric 4. The bore 5, of the hub is ta ered to correspond with the taper of the siliaft 2. The shaft 2, near the base is provided with an annular shoulder 6, on

which rests the lower end of the hub, or in other words the annular shoulder provides a bearing surface for the hub.

The hub and eccentric are cast integral and their union is further strengthened by the ribs 7, and the web 8, the web extending nearly to the top of the hub. The lower edge of the eccentric is provided with a flange 9, on which rests a star ring 10. This ring 10, embraces the eccentric. Depending from the points of the ring 10, are the hooks 11, it is preferable that the same be riveted thereto. By this latter arrangement should any of the hooks become injured they can readily be replaced. It is to these hooks 11, that the ends of the pull rods of the pumps are attached.

The eccentric is operated by means of a belt 14, passing around the rim 15, which is connected to the hub by the spokes 16, and 17. The rim is provided with a series of apertures through which project the headed spoke sections 18, having their free portions threaded, the outer ends of the opening of the rim being countersunk so that the tops of the heads of the spoke sections will be flush with the periphery of the rim when inapplied position. ecured to the spoke sections are turn buckles 19, which in turn engage the threaded ends of the spokes 16, and 17. The spokes 16 extend entirely across the interior of the rim and are provided with offsets 20, which pass through the openings 21, of the eccentric and are engaged by the keys 22, which hold said spokes in engagement with the eccentric.

The spokes 17, are secured to the upper end of the hub 3. By this arrangement the ring 10, of the pump o erating mechanism is beneath the belt whee This reduces the strain or the amount of ower required for the operation and the life of the device is greatly prolonged.

In Fig. 2, is illustrated a modified form wherein two eccentrics are employed beneath the power Wheel proper. This is for the purpose of doubling the capacity of the wheel which will, it is thought, be readily understood. In this form the hub A, has an eccentric B, formed therewith while the eccentric C, arranged therebeneath is keyed in opposite directions. In assembling this form of invention the spokes are attached only to the eccentric B and in this form both of the eccentrics are positioned beneath the power Wheel proper for the same purpose as set forth in/ reference to the preferred form of invention.

In Fig, 3, is shown an additional form of double eccentric. In this arrangement the eccentric a, is ositioned near the base of theVV hub b, while t e eccentric c, is arranged atv the upper end of the shaft, the lower eccentric being formed with the hub while the upper eccentric c, is keyed thereto. In this form the spokes are secured to both the eccentrics in a manner similar to that described with reference to the spokes in the preferred form. y

Although not shown it is to be stated that the belt 14, is in communication with a suitable source of power.

When the pull rod is disengaged, the weight thereof will have a tendency to draw the said rod out of reach. To obviate this disadvantage a rod 2 3, is anchored in the foundation and has on its free end a hook;A

24, which is to engage the hook of the rod.

The hub 3, is provided with a passageway 3', which terminates within the run-way of the eccentric and through this run-way is intended to pass oil or other lubricant as will, it is thought, be plainly understood by those familiar with such an arrangement.

In Figs. 4 and 5, is illustrated means whereby the hooks may be removably secured to the eccentric.

hook is held to the ring by means of suitable The ring 10 is provided near its periphery with the stepped f The bolts or rivets which pass through the hook and the ring.

Having fully described my invention what I claim as new and desire to secure by Letters Patent is- 1. In combination, an operating wheel, an eccentric carried thereby, a ring embracing the eccentric and being provided with an annular groove, hooks provided with shoul- 5 YVders extending within the groove of the ring and means for securing said hooks to the ring.

2. In combination, an o erating wheel, an eccentric formed integra with. the hub thereof, a ring embracing the eccentric and being provided with an annular groove, hooks provided with shoulders extending within the groove of the ring and means for securing said hooks to the ring. 6

3. In combination, an operating wheel, an eccentric formed integral with one end of the hub thereof, a ring embracing the eccentric and being provided with an annular groove, hooks provided with shoulders eX- G tending within the groove of the ring and means for securing said hooks to the ring.

4. In combination, an operating wheel, an eccentric carried thereby, a ring embracing the eccentric and providedwith a stepped 7 annular groove, hooks provided with shoulders extending within the groove of the ring and means for securing said hooks to the ring.

In testimony whereof I atlix my signature 7 in the presence of two witnesses this 7th day of May 1906.

DANIEL R. BLAKESLEEQ Witnesses:

HERBERT IVLELLIOTT, HARRY M. ELLIOTT. 

